Computer Science (AS & A Level) · May / June 2025 · Paper 11 · Question 4

A shop installs a new system that allows users to purchase items without going through a manual checkout. The new system: • identifies customers when they enter the shop and matches them to their account • prevents a customer from walking through the automatic barriers if they do not have an account • automatically detects the items that a customer has taken from a shelf and charges these to the customer’s account.

Read automatically from the paper; the printed page above is exact.